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L4 Senior Network Engineer
L4 Senior Network EngineerApptad Inc • Los Angeles, CA, United States
L4 Senior Network Engineer

L4 Senior Network Engineer

Apptad Inc • Los Angeles, CA, United States
7 days ago
Job type
  • Full-time
  • Quick Apply
Job description

Job Title : L4 Senior Network Engineer

Location : 12800 Culver Blvd, Los Angeles, California

Primary Skill -

Job Description : Role Overview

The Tech Lead will lead network operations and automation initiatives, ensuring robust customer management and technical excellence. This role requires deep expertise in enterprise network administration, automation, and a proven ability to interface with customers, vendors, and internal teams to deliver high-quality service.

Key Responsibilities

  • Oversee and optimize LANs, WANs, VMs, and virtual networks, including routers, switches, firewalls, and load balancers.
  • Lead automation projects to streamline network operations, improve efficiency, and reduce manual intervention.
  • Manage customer relationships, ensuring high satisfaction through proactive communication, issue resolution, and tailored solutions.
  • Negotiate and coordinate with vendors, outsourcers, and contractors for timely and effective delivery of network products and services.
  • Recommend and implement improvements to network architecture and technology portfolio, with a focus on automation and scalability.
  • Ensure successful installation, configuration, migration, and ongoing support of network infrastructure.
  • Drive adherence to ITIL processes and SLAs, monitoring team performance and maintaining service quality.
  • Perform root cause analysis, troubleshoot technical issues, and define / maintain operational processes.
  • Lead and mentor technical teams, identifying skill gaps and planning training for continuous improvement.
  • Manage network monitoring and management tools (e.g., SolarWinds, Moogsoft), and ensure accurate CMDB updates in ServiceNow.
  • Provide Level-3 support, handle escalations, and participate in on-call rotations.
  • Oversee inventory management for all network devices and ensure compliance with security and business continuity standards.
  • Participate in Change Advisory Board (CAB) meetings and represent the team in cross-functional forums.
  • Document technical procedures, contribute to knowledge management, and drive operational excellence.

Technical Skills & Experience

  • 15+ years in network administration within large enterprise environments.
  • Strong hands-on experience with Cisco routers, switches (ASR, ISR, CAT, Nexus 2k / 5k / 7k / 9k), Firepower firewalls, and F5 load balancers (LTM, GTM, ASM, AFM, APM).
  • Proficiency in network monitoring tools (SolarWinds, Moogsoft, Algosec), ServiceNow, and Jira.
  • Deep understanding of static and dynamic routing protocols (EIGRP, OSPF, BGP, ISIS, Multicast, Unicast).
  • Experience with automation tools and scripting for network operations (e.g., Python, Ansible, or similar).
  • Familiarity with cloud networking (AWS, Azure) is a plus.
  • Expertise in disaster recovery, business continuity, and network security best practices.
  • Strong troubleshooting skills, including packet capture / analysis (Wireshark).
  • Experience in designing and documenting complex changes / projects (POA, RFO, RCA).
  • Customer Management & Soft Skills

  • Excellent verbal and written communication skills.
  • Proven ability to manage customer relationships, handle escalations, and deliver results under pressure.
  • Strong documentation and knowledge-sharing skills.
  • High level of acceptance and adaptability to changing business needs.
  • Ability to work in 24x7 rotational shifts, including weekends and holidays.
  • Comfortable working with US-based customers and teams.
  • Certifications

  • ITIL v4
  • CCNP-R&S or equivalent
  • CISSP, CISM, CCSP (preferred)
  • OEM-specific certifications (Cisco, etc.)
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    L4 Senior Network Engineer • Los Angeles, CA, United States

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